Answer:
See proof below
Step-by-step explanation:
Assume that V is a vector space over the field F (take F=R,C if you prefer).
Let
. Then, we can write x as a linear combination of elements of s1, that is, there exist
and
such that
. Now,
then for all
we have that
. In particular, taking
with
we have that
. Then, x is a linear combination of vectors in S2, therefore
. We conclude that
.
If, additionally
then reversing the roles of S1 and S2 in the previous proof,
. Then
, therefore
.
Answer:
219 Seconds ; He was 1 second faster
Step-by-step explanation:
Two halfs equal one whole, meaning both of the times added will equal the full time he took:
95+124=219
219 Seconds
He was 1 second faster because:
219-218=1
Dereks weekly allowance is now $15. 50% of 10 is 5.
10+5=15
Shejrjjsjdjejrnrnrn what is this (sorry737384 sir of